ceph/src/boost/libs/config/test/boost_no_cxx11_thread_local.ipp

   1 //  (C) Copyright John Maddock 2012.
   2 //  Use, modification and distribution are subject to the
   3 //  Boost Software License, Version 1.0. (See accompanying file
   4 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 //  See http://www.boost.org/libs/config for most recent version.
   7
   8 //  MACRO:         BOOST_NO_CXX11_THREAD_LOCAL
   9 //  TITLE:         thread_local
  10 //  DESCRIPTION:   The compiler supports the thread_local storage specifier.
  11
  12 #include <string>
  13
  14
  15 namespace boost_no_cxx11_thread_local{
  16
  17 template <class T>
  18 int check_local(int n)
  19 {
  20    static thread_local T s(n, ' ');
  21    static thread_local int size = s.size();
  22    if(size != n)
  23    {
  24       s = T(n, ' ');
  25           size = n;
  26    }
  27    return size;
  28 }
  29
  30 int test()
  31 {
  32    return check_local<std::string>(5) == 5 ? 0 : 1;
  33 }
  34
  35 }
  36